Wagon-spring



(No Model.) I

. D. WILGOX.

. K WAGON SPRING. Y v 10.381,309. "PatentedApylv,1888,..

' i UNITED STATESr PATENT "`*Orineso f 1 nARIUs wIIiCox, or DERBY, AssIGNoR r.ro .wILCoxaiHown on g BIRMINGHAM, CONNECTICUT. i f i WAGON-SPRING."

SPECIFICATION forming part of Letters Patent No. 381.309. dated'Aprill'i, 1888.5' p

Application sied January 23, 1ers. serial No. 261,703. (No model.) i

To @ZZ whom #may coneern:

'Be it known that I, DARIUs WILCOX, a eitizen of the United States, residing at Derby, in the county of New Haven and Stateof Gonnecticut, have invented certain new and useful Improvements in .Wagon-Springs; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to devise a Asimple and durable constructionforwagonsprings that will wholly overcome the tendency to endwise motion ofthe body in endspring wagons and lateral motion of the body in side-spring wagons,without increase inVA the cost of production.

With this end in view I have devised the novel construction of springs and connections therefor, of which the following description, in connection with the vaccompanying drawings, is a specification, numbers being used to denote the several parts.

Figure 1 is a plan view of one sideof the running-gear of a wagon; Fig. 2, an elevation ofhalf of a front spring; Fig. 3, a plan view of a whole spring; Fig. 4, an elevation of a whole spring; Fig. 5, an elevation of one form of bolt; Fig. 6, an edge view and elevation of the clip corresponding therewith; Fig. 7, an end viewand elevation of another form of bolt, and Fig. y8 an edge view and elevation of the clip corresponding therewith.

It should be understood that the principles of my invention are equally adapted tothe various styles 0f springs now upon the marketas, for instance, side and end half-springs and side and end elliptic springs. A single form being suflicient forthe purposes of illustration, I have selected an end half-spring.

- My improved springs may becomposed of any preferred number' of leaves, the essential principles Ybeing that the two lower leaves -shall be of equal length, that their ends shall be bent outward yaway from each other, and shall be provided witheyes in line with each other and in the same horizontal plane, so as to receive a bolt.

1 denotes the axle; 42, the lower leaves of the spring, and 3 additional leaves, any number of which may be used.

4 denotes the eyes at the ends of the" tw'o f lower leaves, and 5 an eye having a shank, 6, which issecured to'theaxle by a Clip, 7. .The

relative arrangement of these parts will be'f55 clearly understood from Figs. 1 and 2, which show eye 5 placed between vthe eyes 4 atthe ends of the lower leaves. A bolt, 8, passing Vthrough said eyes, secures the spring rmlyto eye 5, and the clip secures the shank ofeye5 6o tothe axle just back of the journal, which is denoted by 9. It will readily be seenthat this double attachment of each end of each spri-ng-` that is, two attachment-s at a distance from each v other in the same horizontal plane-avoids-the danger of lateral or endwise motion of the body after the parts have become slightly loosened b'ywear.k In practiceI have found that the springs ride much easier by making the portion of the 7o bolt which passes througheye 5 eccentric to' the portion which passes through eyes 4. The shape of this'form of bolt is clearly illustra ted in Fig. 7. (See, also, front axle in Figl.) kThe eccentric portion of the bolt,which is denoted 7 5 by 10, turns smoothly in eye I5.

Turning now to Fig. 1, it will be seen that when in rough rriding the weight upon the springs acts to straighten them out the outward thrustiupon eyes4, through ywhich the 8o ends of the bolt pass, ,will cause eccentrics 10 to turn more or less in eyes 5, and to turn back again as soon as .the pressure upon the springs i is removed, the effect being to give additional i resiliency to the springs through the oscillation of the bolts to which they are connected. Instead of using an independentbolt in the form shown in Figs. 5 and 6, trunnions maybe formed at the opposite ends of eye 5. This being an obvious mechanical expedient isnot 9o deemed to require illustratiom.

It should be understood that I do not desire to limit myself .to the exact details of construction illustrated and described, as it is obvious Ythat 'said details may be considerably 95 varied without departing from the spirit of my invention, the gist of which consists, first,

Ain providing two lower leaves to eachihalff spring, the ends of' said leaves being bent outf ward from each other, and being provided with nroo eyes in the same horizontal plane and in line with each other, and, secondly, in the use of a.

' bolt passing through the eyes on the two lower .leaves ofthe springs and through an eye upon the axle, the portion of the bolt passing 'through invention, I

2o ing two lower leaves of equal length, the ends plane and in line ofA said leaves being bent outward and provided With eyes 4, of an eye, 5, secured to the axle, and a bolt passing through said eyes, whereby the springs are secured in place.

4. The combination,with a half-spring hav,- ing two lower leaves of equal length bent 0ut- Ward froml each other, and having eyes 4 at their ends in the same horizontal plane, of an eye, 5, secured to the axle between eyes 4, and a bolt passing through said eyes, the portion of the bolt in eye 5 being eccentric to the portions in eyes 4, so that when the weight tends to straighten the spring in use the eccentric is caused to turn in eye 5.

In testimony whereof I aix my signature in presence of two witnesses.

DARIUS WILCOX.

Witnesses:

' A. M. WoosTER,

B. E. LEE. 

